Atomic models have been improved over the years. Arrange the following atomic models in the order of their chronological order
  1. Rutherford’s atomic model
  2. Thomson’s atomic model
  3. Bohr’s atomic model
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (i)
(c) (ii), (i) and (iii)
(d) (iii), (ii) and (i)

AcademicChemistryNCERTClass 9

Correct Answer: (c) (ii), (i) and (iii) 

Explanation: Thomson atomic model was proposed by William Thomson in the year 1900. This model explained the description of the inner structure of the atom theoretically. It was strongly supported by Sir Joseph Thomson, who had discovered the electron earlier.

Ernest Rutherford, a British scientist proposed the atomic structure of elements and gave Rutherford Atomic Model (1911).

Bohr's model of the atom was proposed by Neil Bohr in 1915.

Updated on 10-Oct-2022 13:32:11